Growth and luminescence characteristics of undoped LaCl3 crystal by Modified Bridgman Method

A promising high-density scintillator of GdTaO4 single crystal

“…17 UV excited and X-ray excited luminescent spectra of undoped GTO polycrystalline also show similar broad band emission. 31,34 It is worth mentioning that similar emission properties have been observed in AWO 4 (A = Pb, Ca, Ba, Sr), 35,36 undoped LaCl 3 crystal, 37 and SrI 2 crystal, 38 in which the emission is assigned to self-trapped excitons' luminescence. Similar to them, the emission has a large Stokes shift and an abrupt decrease from cryogenic temperature to room temperature, which means the reduction of luminescence intensity is not due mostly to thermal quenching of excited states but possibly to thermal disintegration of excitons.…”

Synthesis, Characterization, and Photoluminescence Property of LaCO3OH Microspheres

“…Herein, the emission spectrum of the LaCO 3 OH microspheres consists of a broad band located between 350 and 600 nm and can be attributed to the self-trapped exciton (STE) luminescence. , Many of the free holes and free electrons were created after the lattice was irradiated, and the STEs can be formed directly from electron−hole pairs. During the diffusion of the STEs, they can be an irradiative recombination, leading to luminescence, , the possible origin of the visible PL, but further work is definitely necessary to understand the details of the PL mechanism in the LaCO 3 OH microspheres.…”

Bridgman growth of LaBr3:Ce and LaCl3:Ce crystals for high-resolution gamma-ray spectrometers

“…LaBr 3 :Ce and LaCl 3 :Ce are relatively new scintillator crystals that are addressing the present day needs for gamma-ray spectrometers [1][2][3][4][5][6][7][8][9][10]. The proliferation of nuclear weapons is an ongoing serious global threat.…”